60
30AW
Control management
5
High Temperature Protection
Anti frost protection
A/C Power Interruption
Envelope Limitation Protection
When the water starts to get to hot, this is a sign that the pressure in the system is increasing.
Certain actions are taken to decrease the pressure.
While in Zone N or L the frequency can’t increase.
While in Zone M the frequency is forced to decrease until Fcmin.
*G5XŻPS5Sƥ¡$UIFOUVSOPòUIFDPNQSFTTPSBOETFU'
Tw:
Max(Actual
Water
Temperature
Entering,
Actual Water
Temperature
Exiting)
Tr:
Actual
Refrigerant
Temperature
Fr(n):
real frequency
from the chiller
unit
Fhmin:
minimum
compressor
speed allowed
in heating
This function shall run when the unit is manually stopped or shutdown due to alarm. It shall protect the water exchanger
against freezing risk because of low outside temperature conditions.
The following logic shall be used:
EJòFSFOUGBMMEPXOUISFTIPMEMJNJUTIBWFCFFOCFEFöOFEUPTFRVFOUJBMMZQPXFS0O
o Trace Heater (first intervention) (when installed).
o Water Pump (second intervention)
P6OJU0OJO)FBU.PEF BOE5)0ò
EJòFSFOUSJTFVQUISFTIPMEMJNJUTIBWFCFFOEFöOFEUPTFRVFOUJBMMZ1PXFS0ò
P6OJU0ò BOE5)0O
P8BUFS1VNQ0ò
P5SBDFIFBUFS0ò
DELTA SP:
NUI CODE
109
WP:
Water Pump
TH:
Trace heater
HP:
Heat Pump
OAT:
Outdoor Air
Temperature
EWT:
Enter Water
Temperature
LWT:
Leaving Water
Temperature
This algorithm handles the case of losing A/C line cycles.
*GUIF"$XBWFGPSNJTMPTUGPSNJMMJTFDPOETGPSDFUIFDPNQSFTTPSPòCZTFOEJOH'PSDFE0òTJHOBMUP6OJU5IFOTFOE
cool satisfied or heat satisfied until time guard expires.
This function limits frequency based on a combination of OAT and LWT, in order to guarantee the unit envelope. The
FOWFMPQFMJNJUTBSFEJòFSFOUGPSIFBUJOHBOEDPPMJOHNPEFBOEDIBOHFGSPNBTJ[FUPBOPUIFS
HEATING
-20 °C ≤OAT≤30 °C
20 °C≤LWT≤60 °C
COOLING
0 °C ≤ OAT ≤ 46 °C
4 °C ≤ LWT ≤ 18 °C
For more details see par 2.4 Operation Limits
When the OAT and/or LWT values are out of these limits the Aquasnap unit doesn’t stop but it works in particular
conditions in order to preserve the compressor (frequency and for uptime limitation).
OAT:
Outdoor Air
Temperature
LWT:
Leaving Water
Temperature
TH
WP
HP
Threshold A
[(EWT or LWT < (DELTA SP + 4°C))]
ON
OFF
OFF
Threshold B
[(EWT or LWT < (DELTA SP + 3°C))]
ON
ON
OFF
Threshold C
[(EWT or LWT < (DELTA SP + 2°C )]
OFF
ON
ON
Threshold D
[(EWT and LWT > (DELTA SP + 5°C)]
OFF
OFF
OFF
Compressor OFF
M
N
L
61 °C
60 °C
62 °C
Tw
SM_30AW.indd 60
14-03-2011 14:45:07
Содержание 30AWH004HB
Страница 30: ...30 30AW GMC control size 004HB Electrical connections 4 SM_30AW indd 30 14 03 2011 14 42 18...
Страница 31: ...31 30AW Electrical connections 4 Inverter control size 004XB SM_30AW indd 31 14 03 2011 14 42 21...
Страница 32: ...32 30AW GMC control size 004XB Electrical connections 4 SM_30AW indd 32 14 03 2011 14 42 24...
Страница 33: ...33 30AW Inverter control size 006HB Electrical connections 4 SM_30AW indd 33 14 03 2011 14 42 27...
Страница 34: ...34 30AW GMC control size 006HB Electrical connections 4 SM_30AW indd 34 14 03 2011 14 42 29...
Страница 35: ...35 30AW Inverter control size 006XB Electrical connections 4 SM_30AW indd 35 14 03 2011 14 42 32...
Страница 36: ...36 30AW GMC control size 006XB Electrical connections 4 SM_30AW indd 36 14 03 2011 14 42 35...
Страница 37: ...37 30AW Inverter control size 006NX Electrical connections 4 SM_30AW indd 37 14 03 2011 14 42 38...
Страница 38: ...38 30AW GMC control size 006NX Electrical connections 4 SM_30AW indd 38 14 03 2011 14 42 40...
Страница 39: ...39 30AW Inverter control size 008HB Electrical connections 4 SM_30AW indd 39 14 03 2011 14 42 42...
Страница 40: ...40 30AW GMC control size 008HB Electrical connections 4 SM_30AW indd 40 14 03 2011 14 42 45...
Страница 41: ...41 30AW Inverter control size 008XB Electrical connections 4 SM_30AW indd 41 14 03 2011 14 42 48...
Страница 42: ...42 30AW GMC control size 008XB Electrical connections 4 SM_30AW indd 42 14 03 2011 14 42 50...
Страница 43: ...43 30AW Inverter control size 008NX Electrical connections 4 SM_30AW indd 43 14 03 2011 14 42 53...
Страница 44: ...44 30AW GMC control size 008NX Electrical connections 4 SM_30AW indd 44 14 03 2011 14 42 56...
Страница 45: ...45 30AW Inverter control size 012HB Electrical connections 4 SM_30AW indd 45 14 03 2011 14 42 58...
Страница 46: ...46 30AW GMC control size 012HB Electrical connections 4 SM_30AW indd 46 14 03 2011 14 43 01...
Страница 47: ...47 30AW Inverter control size 012XB Electrical connections 4 SM_30AW indd 47 14 03 2011 14 43 04...
Страница 48: ...48 30AW GMC control size 012XB Electrical connections 4 SM_30AW indd 48 14 03 2011 14 43 07...
Страница 49: ...49 30AW Inverter control size 012NX Electrical connections 4 SM_30AW indd 49 14 03 2011 14 43 10...
Страница 50: ...50 30AW GMC control size 012NX Electrical connections 4 SM_30AW indd 50 14 03 2011 14 43 13...
Страница 51: ...51 30AW Inverter control size 015HB SM_30AW indd 51 14 03 2011 14 43 16...
Страница 52: ...52 30AW GMC control size 015HB SM_30AW indd 52 14 03 2011 14 43 19...
Страница 53: ...53 30AW Inverter control size 015XB SM_30AW indd 53 14 03 2011 14 44 58...
Страница 54: ...54 30AW GMC control size 015XB SM_30AW indd 54 14 03 2011 14 45 01...
Страница 100: ...100 30AW Carrier interfaces 7 SM_30AW indd 100 14 03 2011 14 46 25...
Страница 120: ...120 30AW Spare Parts 9 For the spare parts refer to specific document SM_30AW indd 120 14 03 2011 14 47 00...
Страница 136: ...136 30AW Additional Informations 11 11 1 Additional information SM_30AW indd 136 14 03 2011 14 47 24...
Страница 137: ...137 30AW Additional Informations 11 11 1 Additional information SM_30AW indd 137 14 03 2011 14 47 25...